3(x+6)=21-9

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Solution for 3(x+6)=21-9 equation: 



3(x+6)=21-9

We move all terms to the left:

3(x+6)-(21-9)=0

We add all the numbers together, and all the variables

3(x+6)-12=0

We multiply parentheses

3x+18-12=0

We add all the numbers together, and all the variables

3x+6=0

We move all terms containing x to the left, all other terms to the right

3x=-6

x=-6/3

x=-2

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